Bacterial meningitis alters intracranial physiology, causing:

Correct Answer: D

Rationale: The correct answer is D. Bacterial meningitis alters intracranial physiology by causing cerebral edema, raised intracranial pressure, and increased permeability of the blood-brain barrier. Cerebral edema is the accumulation of fluid in the brain tissue, leading to increased pressure. Raised intracranial pressure occurs due to the inflammation and swelling caused by the infection. Increased permeability of the blood-brain barrier allows substances to pass through that would normally be blocked, contributing to the inflammatory response. Therefore, all of these changes are interconnected and commonly observed in bacterial meningitis cases. Choices A, B, and C individually describe specific alterations seen in bacterial meningitis but do not encompass the full spectrum of changes that occur, making them incorrect options.

Correct Answer: C

Rationale: The correct answer is C: To rule out cholinergic crisis caused by Neostigmine. Edrophonium HCL is a fast-acting cholinesterase inhibitor used to differentiate between myasthenic crisis and cholinergic crisis. If the patient's weakness improves after administration of edrophonium, it indicates that the weakness was due to myasthenia gravis and not cholinergic crisis caused by excessive neostigmine. Choice A is incorrect because there is no synergestic effect between neostigmine and edrophonium. Choice B is incorrect as resistance to neostigmine is not a valid reason for ordering edrophonium. Choice D is incorrect because edrophonium is used for differential diagnosis, not for confirming the diagnosis of myasthenia gravis.

Correct Answer: A

Rationale: The correct answer is A because shampooing the hair thoroughly helps remove oil and dirt, which can interfere with the CT scan results. By having clean hair, the scan can produce clearer images. Choice B is incorrect because some preparation is needed for a CT scan, especially regarding cleanliness. Choice C is incorrect as giving a cleansing enema and fluids until 8 AM is not necessary for a CT scan of the head. Choice D is incorrect as shaving the scalp and attaching electrodes are not part of routine preparation for a CT scan.

Correct Answer: B

Rationale: The correct answer is B: Clients with metal implants in their body. An MRI uses strong magnetic fields, which can interact with metal implants, causing movement or heating of the metal and potential harm to the client. This could lead to serious injuries or complications during the scan. Overweight clients (choice A), clients over the age of 60 (choice C), and clients with brain tumors (choice D) do not have contraindications for an MRI scan.

Correct Answer: D

Rationale: The correct answer is D, a behavior change. Urinary retention in older adults with a neurologic deficit can manifest as a behavior change, such as increased agitation, confusion, or restlessness due to discomfort from the inability to empty the bladder. Amnesia (A) is memory loss and not directly related to urinary retention. Hypertension (B) and hypotension (C) are related to blood pressure regulation and are not specific signs of urinary retention. In contrast, a behavior change (D) is a common and characteristic sign indicating urinary retention in this population.